13121212303222 has 4 divisors (see below), whose sum is σ = 19681818454836. Its totient is φ = 6560606151610.

The previous prime is 13121212303159. The next prime is 13121212303223. The reversal of 13121212303222 is 22230321212131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121212303223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280303075804 + ... + 3280303075807.

It is an arithmetic number, because the mean of its divisors is an integer number (4920454613709).

Almost surely, 2^{13121212303222} is an apocalyptic number.

13121212303222 is a deficient number, since it is larger than the sum of its proper divisors (6560606151614).

13121212303222 is an equidigital number, since it uses as much as digits as its factorization.

13121212303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560606151613.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13121212303222 its reverse (22230321212131), we get a palindrome (35351533515353).

The spelling of 13121212303222 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twelve million, three hundred three thousand, two hundred twenty-two".